California · Nonprofit
SAN DIEGO TURTLE AND TORTOISE SOCIETY
SAN DIEGO TURTLE AND TORTOISE SOCIETY (California) receives grants from 3 organizations whose IRS filings report $6,478 to it, the largest being SEAWORLD & BUSCH GARDENS CONSERVATION FUND ($4,000). 2 of them have funded it in more than one year.
- Revenue FY2025
- $37k
- Funders on record
- 3
- Grants received
- $6k
- Net assets
- $32k
What San Diego Turtle and Tortoise Society does
Mission
The mission of the san diego turtle & tortoise society (sdtts) is to rescue, rehab and adopt out tortoises and turtles to society members and certain community members. The organization also provides education on the care of these animals.
As stated on its FY2025 Form 990-EZ.
Programs
Tortoise fostering. Sdtts receives a large number of tortoises that have been relinquished to the organization. Foster homes are provided and supported - providing heat, water, electricity, houses and food. Sulcata fostering. Sdtts has several foster homes for sulcata tortoises,which provide heat, water, electricity, houses and food. Sulcatas are very large animals (50-150 lbs average) and create unique problems because of their size; thus they tend to be sheltered for longer times and are more difficult to place in homes. Water turtle fostering. Sdtts also supports foster homes for water turtles - paying for the heating, electricity, water (significant), water tubs,water pumps, and food. Water turtles - especially red eared sliders - are very prolific and the organization has taken in about 500-750 turtles each year, and adopts them out. Sdtts is working with fish and wildlife to stop pet stores from selling these, as there are too many to deal with.
$9,035 spent40% of program spendingVeterinary services. Sdtts sponsors veterinary services for the turtles and tortoises in their care or in foster homes.
$1,172 spent5% of program spendingProducts. Items are purchased to sell at adoption shows, to increase funds to care for these chelonians.
$4,018 spent18% of program spendingNewsletter, printing and copying. Sdtts prints a newsletter four (4) times per year. The newsletter is mailed to sponsors, members, the media and grantors. This provides education as to the care of the turtles and tortoises and provides information related to these animals around the world. Special events. Sdtts holds community/adoption events to share information related to turtles and tortoises, their rescue, care and rehabilitation, and to adopt out certain chelonians.
$8,524 spent37% of program spending
The 4 programs described on its FY2025 Form 990-EZ. Program spending in total: $22,749.
The organization over time
Each line starts at 100 in 2019, so what you read is the shape rather than the size: 150 means half as much again as 2019, 50 means half. The number beside each label in the key is where it ended.
Balance sheet
Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2021 to 2022, from $48k to $36k (−25%).
How it's funded, over time
Each bar is one year's revenue split into where it came from, and every bar is the same height — these are shares, not amounts, so a year that raised twice as much looks the same size. Hover a bar for the split.
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 4 of the last 7 reported years ran a deficit.
Who funds it, year by year
2017 → 2023: the base held at 1 funder, grant income fell $2k → $400.
1 of 3 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 31% of grant dollars received. That money is really individual donors directing a sponsor; the institutions to cultivate are the non-DAF funders.
From the IRS filings of SAN DIEGO TURTLE AND TORTOISE SOCIETY’s funders (the co-funder graph). Association, not causation. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
How concentrated its funding is
SAN DIEGO TURTLE AND TORTOISE SOCIETY leans on a few funders — its largest provides 62% of grant income and the top three 100%; half comes from just 1 funder.
the vertical line marks half of all grant income — 1 funder to its left
31% of the income these shares are computed over arrives through pass-through sponsors or from payers whose filings do not say what kind of payment it is. Concentration is still measured over all of it, because the money is real; what it does not support is a claim about how many institutions have chosen to fund SAN DIEGO TURTLE AND TORTOISE SOCIETY.
Largest funder’s share by year: 2017 100% · 2019 100% · 2020 100% · 2021 55% · 2022 100% · 2023 100% — broadly stable.
“Effective funders” = inverse Herfindahl index (1 / Σ shareᵢ²) — the number of equal-sized funders that would give the same concentration. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
Where its funders are
SAN DIEGO TURTLE AND TORTOISE SOCIETY draws 100% of its grant income from funders outside California, across 2 states in all.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $2k arriving through sponsors registered in 1 state is excluded from the map and the split above: a sponsor holds money on a donor’s behalf, so its registered address would place those dollars somewhere no donor need ever have been. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
Organizations like SAN DIEGO TURTLE AND TORTOISE SOCIETY
Organizations whose mission and program text most resemble this one, by semantic similarity over every organization in the US filings — the closest peers, and often the clearest route to shared or prospective funders.
In California
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Public support
99%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Footprint & structure
Files a return copy in 1 state
Screen this organization
A dated, signed PDF of the compliance screen for SAN DIEGO TURTLE AND TORTOISE SOCIETY: IRS status (Business Master File, Publication 78, auto-revocation), the OFAC sanctions lists, the Internal Revenue Bulletin, and California registration, with the Rev. Proc. 2018-32 §8.01 reliance elements stated element by element. Generated from the current files at the moment you download it.
Screens are triage, not determinations; a source that cannot be read reports not screened, never clear. Screen this nonprofit · How the screen works · on the API as GET /api/screening/{ein}?format=pdf
Questions and answers
- Who funds SAN DIEGO TURTLE AND TORTOISE SOCIETY?
- SAN DIEGO TURTLE AND TORTOISE SOCIETY (California) receives grants from 3 organizations whose IRS filings report $6,478 to it, the largest being SEAWORLD & BUSCH GARDENS CONSERVATION FUND ($4,000). 2 of them have funded it in more than one year.
- How many funders does SAN DIEGO TURTLE AND TORTOISE SOCIETY have?
- IRS filings report 3 organizations giving $6,478 in grants to SAN DIEGO TURTLE AND TORTOISE SOCIETY, 2 of which have funded it in more than one year.
- Who is the largest funder of SAN DIEGO TURTLE AND TORTOISE SOCIETY?
- SEAWORLD & BUSCH GARDENS CONSERVATION FUND is the largest funder on record, with $4,000 in grants. The full list of funders is on this page.
- How can an organization like SAN DIEGO TURTLE AND TORTOISE SOCIETY find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in California. The funding by cause and by state pages list the largest funders for a given area and how to approach them.
Play a game about who funds San Diego Turtle and Tortoise Society →
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2019–2025), and the filings of 3 funders that report grants to it. “On record” means captured in the filings we have parsed — a funder that does not e-file, or whose grant detail is not itemized, will not appear. Filings run roughly 12–24 months behind. Trends on this page end at FY2023, the last fiscal year that has finished arriving; later years are shown and marked, and move no figure. Data on this page was exported October 14, 2026. What this page cannot tell you · view filing